共 12 条
[2]
BOHMAN VR, 1958, J ANIM SCI, V17, P1195
[6]
DAVISON KL, 1961, THESIS IOWA STAT U S
[8]
GARTON G A, 1960, Nutr Abstr Rev, V30, P1
[9]
HILL FD, 1960, THESIS IOWA STATE U